Onion Tarte Tatin

Name: Onion Tarte Tatin
Prep time: 20 min
Cook time: 50 min
Total time: 80 min
Yield: 8 slices
Cuisine: French
Ingredients: 1 1/4 cup all-purpose flour; 1/2 teaspoon salt; 1/2 cup unsalted butter (cold, cubed); 3-4 tablespoons ice water; 4 large yellow onions (thinly sliced); 2 tablespoons olive oil; 2 tablespoons unsalted butter; 2 tablespoons sugar; 1 teaspoon balsamic vinegar; 1/2 teaspoon salt; 1/4 teaspoon black pepper

80 min 8 slices Medium

All Recipes

Onion Tarte Tatin

A savoury twist on the classic Tarte Tatin featuring caramelized onions on a flaky pastry base.

Prep

20 min

Cook

50 min

Total

80 min

Servings

Difficulty

Medium

Onion Tarte Tatin is a delightful savoury twist on the traditional French dessert. Originating from the Tatin sisters' classic recipe, this version replaces the usual apples with sweet, caramelized onions, creating a perfect blend of rich, deep flavours and buttery pastry. This dish is ideal for those who appreciate the sophisticated simplicity of French cuisine. The slow-cooked onions develop a complex sweetness that pairs beautifully with the crisp, buttery pastry, making it a standout choice for an appetizer or a light meal.

Instructions

Prepare the pastry

In a bowl, combine flour and salt. Cut in butter until mixture resembles coarse crumbs. Gradually add ice water, mixing until dough forms a ball. Wrap in plastic wrap and refrigerate for at least 30 minutes.

Pro tip: Do not overwork the dough to keep it tender.

Caramelize the onions

In a large skillet, heat olive oil and butter over medium heat. Add onions and cook, stirring often, until soft and golden brown, about 25 minutes. Stir in sugar, balsamic vinegar, salt, and pepper, cooking for an additional 5 minutes.

Pro tip: Use a heavy skillet to prevent burning.

Preheat the oven

Preheat your oven to 375°F (190°C).

Assemble the tart

Transfer the caramelized onions to a 23 cm (9-inch) tart pan, spreading evenly. Roll out the chilled dough on a floured surface and place over the onions, tucking the edges down into the pan.

Pro tip: Use a rolling pin to transfer the dough easily.

Bake the tart

Bake in the preheated oven for 25-30 minutes, or until the pastry is golden brown and crisp.

Pro tip: Check the tart halfway through to avoid over-browning.

Rest and serve

Remove from oven and let rest for 10 minutes. Carefully invert the tart onto a serving platter. Serve warm.

Pro tip: Use a plate slightly larger than the tart pan to avoid spills.

💡

Tips & Tricks

Use a heavy-bottomed skillet to ensure even caramelization of the onions.
Chill the pastry before baking for a flakier crust.
Allow the tart to rest slightly before flipping for cleaner slices.
Experiment with different onion varieties for unique flavours.

Frequently Asked Questions

What is a tarte au oignon?

A tarte au oignon is a savoury French tart made with caramelized onions on a pastry base.

Can I use different onions?

Yes, you can use red onions or a mix of onions for varied flavours.

How long does it take to caramelize onions?

It takes about 25 minutes to caramelize onions over medium heat.

What size pan should I use?

Use a 23 cm (9-inch) tart pan for this recipe.

Can I make the pastry ahead of time?

Yes, the pastry can be made a day in advance and stored in the fridge.

Serving Suggestions

Serve this Onion Tarte Tatin warm, either as an elegant appetizer or a light lunch accompanied by a fresh green salad. Its rich, caramelized flavours also pair wonderfully with a glass of dry white wine. To make ahead, prepare the onions and pastry separately. Assemble and bake just before serving. Store leftovers in an airtight container in the fridge for up to two days, and reheat gently in the oven.

Nutrition per serving

240

Calories

Protein

13g

Fat

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